HONG KONG: Warmer and more acidic oceans will cause common fish species to flourish, but they’ll inhabit a largely “barren” seascape, a University of Adelaide study has found.
The study used the waters around volcanic vents as a guide to what could be expected by the impact of climate change.
“It found some fish species were more abundant in the acidified waters,” project leader Associate Professor Ivan Nagelkerken said.
“But these were common or generalist species, such as goby and triplefin, which doubled or even tripled in number to the detriment of other species.”
Study co-author Professor Sean Connell said warmer ocean habitats would be highly irregular.
“You move into the vent area where everything is barren with short turf algae, just a few centimetres high and devoid of the life and colour of the other areas,” he said.
The study, published in the journal Nature Climate Change, was a world first because it looked at fish in their natural environments, not a laboratory.
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